Telerik Forums RSShttp://www.telerik.com/urn:uuid:7682c174-5d9d-4138-a044-b881ffa8bfb4http://www.telerik.com/forums/permalink/dMGCdp1dOEGgRLiB_6i_tARad Control1. You can use the DetailTableDataBind even to specify the DataSource of the DetailTable.<br><br><a href="http://www.telerik.com/help/aspnet/grid/RadGrid%7ETelerik.WebControls.RadGrid%7EDetailTableDataBind_EV.html">http://www.telerik.com/help/aspnet/grid/RadGrid%7ETelerik.WebControls.RadGrid%7EDetailTableDataBind_EV.html</a><br><br>2. Adding FormTemplate for Editing in rad Grid is demonstrated in the following online example:<br><br><a href="http://www.telerik.com/demos/aspnet/Grid/Examples/DataEditing/TemplateFormUpdate/DefaultCS.aspx">http://www.telerik.com/demos/aspnet/Grid/Examples/DataEditing/TemplateFormUpdate/DefaultCS.aspx</a><br>(you can check out implementatino details in the C# / VB.NET / ASPX code tabs below the example)<br>urn:uuid:12cb917e-42e6-45a9-a5fe-d47b83d776f4http://www.telerik.com/forums/permalink/fpHLEuZCqUWl_tR7g9d29ARad Controlplease answer to following queries.<br><br>1.How to bind datasource to a hierarchical grid especially inner data table through code behind?<br><br>2. How to add edit form template in a hierarchical grid?